Turning and boring machine



Mar. 3,1025. 1,528,6Y3

W. H. LEONARD TURNING AND BORING MACHINE Filed March 27, 1924 4 Sheets-Sheet I AZ/ilmonar ATTORNEY.

w. H. LEONARD mum AND BORING momma Filed 27. 1924 4 She'tS-Sheet 2 Q Q S Mar. 3. 1925.

,w. H. LEONARD TURNING AND BORING mourns 1166 March 27, 1924 l II E ll/[Leonar ATTORNEY. I

Mar. 3. 1925.-

A w. H. LEONARD TURNING AND BORING MACHINE 1 Filed March 27, 1924 4.s"hee ssheet 4 H-H] INVENTOR.

ATTORNEY.

I. M/[Leonarol Patented Mar. 3, 1925.

UNITED STATES PATENT OFFICE.

WILLIAM HENRY LEONARD, 0F RICHMOND, VIRGINIA; WERTIE WR-AY LEONARD AD- l MINISTRATOR 0F SAID WILLIAM HENRY LEONARD, DECEASED.

TURNING AND BORING MACHINE.

Application filed March 27, 1924. Serial No. 702,358.

7 '0 all 1071 am it may concern:

Be it known that, I, lVILLIAM HENRY LEONARD, a citizen of the United States, residing at Richmond, in the county of Henrico and State of Virginia, have invented certain new and useful Improvements in Turning and Boring Machines, of which the following is a specification, reference being had to the accompanying drawings. This invention relates to certain improvements in turning and boring machines and has relation more particularly to a device of this general character of a portable type and it is an object of the invention to provide a novel and improved device of this character especially designed and adapted for use in turning locomotive and other crank pins, railroad and other car journals, boringc-rank pin and other holes and the like. i

It isfalso. an object of the invention to provide a-novel and improved device of this general character which may be applied in working position to turn a crank pin without the necessity of "dropping the wheels from under the engine or removing the pins from the' wheels. it only being necessary to uncouple the rod.

It is also an object of the invention to provide a novel and improved device of this generalcharacter which may be adapted to any. turning, boring or other work in rail road, industrial or other shops or places, and which may be, if desired, anchored by suitable means to work bench, foundation or the like, thereby converting it into a stationary machine. I

The invention also has for an object to provide a novel and improved device of this general character which may be power driven or manually operated if'desired and wherein is provided a feed which may be either automatically or manually controlled. An additional object of the invention is to provide a novel and. improved device of this general character embodying a hollow spindle supported" for rotation and capable of endwise movement, said spindle being adapted'to carry the requisite tool together with separate means for rotating the spmdleand for imparting the desired endwise movement thereto. p

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved machine whereby certain important advantages are attained and the device renwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my, invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein 1- .dered simpler, less expensive and other- Figure 1 is a view in side elevation of 3, the section being taken substantially on the line 4t4 of Figure 3;

Figure 5 is a fragmentary view party in section and partly in elevation illustrating in detail the slidable member comprised in the feed mechanism;

Figure 6 is a sectional view taken substantially on the line 6-6 of Figure 5 Figure 7 is a longitudinal vertical sectional view taken through the device as illustrated in Figure 1;

Figure 8 is a detailed sectional view taken substantially on the line 8-8 of Figure 7 Figure 9 is a sectional view of a reducing bushing adapted to be employed in connection with'the anchor plate;

Figure 10 is a fragmentary view in elevation illustrating a mounting for the tool post with a finishing tool applied thereto;

Figure 11 is asectional view'taken sub stantially on the line 11-11 of Figure 10,

with certain of the parts in elevation;

Figure 12 is a sectional view taken substantially on the line l2-12 of Figure 10, with certain of the parts in top plan;

Figure 13 is a view in perspective of one of the attaching members coacting with the anchor plate;

Figure 14 1s a view partly in section and partly in elevation illustrating an embodiment of my invention particularly adapted for use in connection with the turning of crank pins carried by a drive wheel or the like and showing a centering member applied to the tubular spindle;

Figure 15 is a view partly in section and partly in rear elevation of the anchor plate as comprised in this second embodiment of my invention;

Figure 16 is a view in front elevation of the centering device as disclosed in Figure let; and

Figure 17 is a view in perspective of one of the attaching members adapted for co action wit-h the anchor plate comprised in the second form of my invention.

As particularly illustrated in Figures 1 to 13 inclusive, B denotes an elongated base member having integrally formed with its outer end an upstanding anchor plate P of desired dimensions The rear portion of the plate is provided with an upstanding block 1 provided at its opposite ends with the bearings 2 having associated therewith the bearing caps 3.

Each of the caps 3 is held to a bearing 2 by the bolts 1 or the like and held by the bolts 4 associated with the outer cap 3 is an upstanding bail 6 providing means whereby the device in its entirety may be lifted from one place to another by a suitable crane or the like.

Rotatably supported within each of the bearings 2 and its associated cap 3 is a bush ing 7 the marginal portions of which being defined by the outstanding flanges 8 overlying the side faces of the bearing 2 and cap 3 whereby the bushing 7 is efl ectively maintained in desired position. Disposed through the bushing 7 is an elongated tubular and cylindrical spindle S having its rear end closed by the head 9 herein disclosed as formed integrally therewith, while the opposite or outer end of the spindle is open. The spindle S is keyed, as at 10 to the bushings 7 for rotation therewith but permitting lengthwise or longitudinal movement of such spindle S.

Surrounding the spindle S and also keyed thereto and snugly fitting between the bushings 7 or more particularly the inner flanges 8 thereof is'a sleeve 11 and mounted upon said sleeve 11 are the pulleys 12 and 1 1, the pulley 12 being here-in disclosed as locked to the sleeve 11, while the second pulley lat is loose thereon. A belt leading from a suitable source of powe'r is adapted to be operatively engaged with the pulley 12 to impart requisite rotation to the spindle S. When it is desired to bring said spindle to a stand still, said belt is adapted to be shifted upon the loose pulley 14. Any suitable means as indicated at M in Figure 1., may be employed to effect the desired shifting of the belt.

If desired, the pulley 1 1- may also be locked to the sleeve 11 so that both pulleys 12 and 1 1 may be employed as driving mediums.

The forward or open end portion of the spindle S is defined by an outstanding annular flange 15 whereby the wall of said end portion is of increased thickness, and formed in the outer face of said flange 15 is a radially disposed slot 16 open at its opposite ends and communicating with the interior or bore of the spindle S.

Snugly engaging within the slot 16 is a tool post 17 and a side face of said post adjacent its outer end has disposed thereacross the grooves 18 into which is adapted to beselectively engaged a flange or head 19 carried by a shank 20. The shank 20 is disposed in parallelism with the post 17 and is in threaded engagement with the flange 15 so that upon rotation of the shank 20 the post 17 may be longitudinally adjusted with respect to the axial center of the spindle S as the occasions of practice may neces sitate. The shank 2O outwardly of the head or flange 19 is provided with an extension 21 angular in cross section and with which the turning implement is adapted to be engaged.

The outer face of the post 17 along a longitudinal marginal portion thereof is provided with a rabbet 22, the inner or base wall of which adapted to have partially engaged therewith the head 23 carried by a shank 24 in threaded engagement with the flange 15. The outer face of the flange 15 is provided with a recess 25 in which the head 23 is housed so that said head 23 offers no obstruction upon the outer face of the flange 15. The shank 24 together with the head 23 provides means whereby the post 17 is effectively maintained in applied position within the slot 16.

The outer face of the post 17 has provided therealong the groove or channel 26 and the base of said groove or channel 26 adjacent its lower end has in communication therewith an opening 27 disposed through the rear portion of the post 17.

As is particularly illustrated in Figure 7, the groove or channel 26 has positioned therein a cutting tool 28 the same being held in position by the clamping screws 29 threaded into the post 17 from a side thereof, said screws 29 being of a length to termiuate inwardly of the adjacent side face of the post 17 when in clamping engagement with the cutting tool 28 or the like.

Bolted or otherwise secured, as at 30, with the rear end of the base B is a table 31 of desired dimensions, the inner end portion of said table being provided with a laterally disposed extension The outer end portion of the table 31 is provided with an upstanding post 33 with which is slidably lit) engaged an elongated rod 34, said rod being herein disclosed as held in applied position upon the post 33 by the removable cap 35.

The inner end portion of the rod 34 is in swiveled connection, as at 36, with the head 9 of the spindle S whereby the rod 34 may be operated to effect desired endwise movement of the spindle S without offering hinder-ance or obstruction to the desired rotation of such spindle.

A face of the rod 34 is provided therealong with the teeth 36 engaging a worm 37. The worm'37 is fixed to a shaft 38 rotatably supported by the upstanding bearings carried by the outer end portion of the table 31 and an extended portion of the shaft 38 is provided with a series of outstanding and circumferentially spaced teeth 40. Upon requisite rotation of the shaft 38 the rod 34 may be moved in desired direction to effect advancement or retraction of the spindle S.

The bearings 39 hereiubefore referred to, are carried by a platform 41 supported a desired distance above the outer end of the table 31 and engaged therewith is a lateral extension 42 provided at the outer end of said table 31, said support being effected by the upstanding posts 43. Disposed through the table 31 and rotatably supported thereby is a shaft 44. The shaft 44 extends beyond opposite sides of the table 41 and the outer extended portion thereof has keyed thereon. for rotation therewith a sleeve 46, said sleeve however being capable of movement lengthwise of the shaft 44. One end portion of the sleeve 46 is provided with an outstanding tooth 47 which, when the sleeve is in one position, as at its limit of inward moven'ient, intermittently engages a tooth carried by the axle 38 and thereby effecting, during the rotation of the shaft 44 in one direction, an intermittent forward feed of the rod 34 and spindle S. The inner end portion of the sleeve 46 is provided with a series of teeth-48 disposed circ,umferen-' tially therearound and which are adapted to mesh with the teeth 40 of the shaft 38 when the sleeve 46 is at the limit of its outward movement so that upon requisite rotation of the shaft 44, the rod 34 and the spindle S may be retracted and at a relatively high rate of speed. The outward movement of the sleeve 46 is limited by a cotter pin 49 or the like disposed through the outer extremity of the coacting extension of the shaft 44.

The sleeve 46 is adapted to be manually moved into either of these two positions and in order to effect such movement, the outer end portion of said sleeve is providedwith the outstanding flange 50. with which the hand of an operator may readily engage.-

The opposite extended portion of the shaft 44 has fixed thereto a gear wheel 51 meshing with a gear wheel 52 carried by a shaft 53, said shaft being rotatably supported by the table 41 and the upstanding bearings 54 carried by the table extension 32. The outer end of the shaft 53 carries a hand wheel 55 whereby said shaft 53 may be manually rotated when desired.

The opposite or inner end portion of the shaft 53 has keyed thereon for rotation therewith a sleeve 56 of the sleeve however being capable of movement lengthwise of theshaft The sleeve 56 carries a gear 57 meshing with a gear 58 comprised in a flange 8 of the rear bushing 7.

When the gears 57 and 58 are in mesh the spindle S or more particularly the inner bushing 7 provides a driving medium for the shaft 44 so that during the rotation of the'spindle S said spindle will be intermittently advanced. tract the spindle S, the sleeve 56 is moved inwardly a distance suiiicient to disengage the gear 57 from the gear 58, as is indicated by broken lines in Figure 3, such adjustment being preferably effected with the spindle S at standstill. After the gear 57 has been rendered inoperative, the shaft 53 is manually rotated in a desired direction through the medium of the hand wheel 55.

In order to facilitate the desired movement of the sleeve 46, the inner end portion thereof is provided with an outstanding flange 59 to provide the requisite hand hold or grip.

As particularly illustrated in Figures 1, 3 1 K and 7, my improved lathe is shown in position for turning a car wheel journal C and when so used the associated axle and both of the wheels thereon are removed from the journal boxing which may be done in the usual manner by either jacking the car up to drop the wheels or to drop the wheels by means of the regular drop pits but it is not necessary to remove the trucks from the car. The anchor plate P is engaged against the outer face of the wheel V with the journal C disposed through. and snugly engaged within the suitably positionel opening 60 produced in said plate P. hen the journal C is so disposed through the opening 60, the outer end portion of the journal may be readily received within the spindle S through the open end thereof and the tool 28 readily adjusted with respect to the axis of the spindle S to effect the desired cutting. 1.

In the event the opening 60 is of too great a diameter for the portion of the journal C arranged therein, a reducing bushing 61 may be applied therein, said bushing 61 being held in working position through the medium of a clamping screw 62 threaded from above through the upper portion of the plate P. V

The outer face of the plate P has substantially close contact with the outer face lVhen it is desired to rer of the associated wheel and in the event such outer face of the wheel WV possesses any undue inequalities, the same may be readily compensated for through the medium of the bolts 6% threaded through the suitably positioned opening in the plate P and which are adapted to have contact wit-h the outer face of the wheel as is particularly illustrated in Figures 3 and 7 of the drawings.

\Vhen it is desired to use my improved device when boring a suitable chuck or the like may be engaged within the open end portion of the spindle S and for Which purpose the inner face of the open end portion thereof is provided with the grooves or slots 66 to provide means for locking said chuck or the like in applied position.

The plate P is connected or coupled to the wheel through the medium of the T-bolts 67 each of said bolts having the inner portion of its shank square to seat within a peripheral recess 68 provided within the plate P. Coacting with the outer end portion of the shank of the bolt is the nut 69 whereby the bolt may be maintained in proper engagement with the wheel \V.

The embodiment of my invention as illustrated in Figures 14, 15, 16 and 17 is for the purpose of turning a crank pin on a drive wheel without the necessity of dropping the wheel from under the engine or removing the pin, it only being required to uncouple the driving rod.

The base B of the machine is provided at its outer end with the upstanding plate P herein disclosed as rectangular in form and which is provided in each end portion with the spaced open slots '70 through which are adapted to be disposed the T-bolts 71 the heads of which bridging the space between adjacent spokes of the drive wheel D. The slot 70 permit the bolts 71 to be adjustably engaged with the plate P to compensate for drive wheels of difierent sizes but it will be understood that when the bolts 71 are in operative engagement with the wheel D said plate P may be adjusted to a considerable extent in order to assure the proper centering of the crank pin 72 with respect to the spindle S. In order to assure the proper positioning of the pin 72 with respect to the spindle S, I find it of advantage to employ the centering device 73 as particularly illustrated in Figures 14 and 16. After the pin 72 has been properly set the centering device 73 is removed and the post 17 with the desired tool applied.

In order to give dressing or finish to a journal C or a pin 7 2 after a turning operation, I find it of advantage to employ the roller 74 adapted to have rolling contact with the surface of the journal or pin. As is particularly illustrated in Figures 10 and 11 this roller 74 is freely mounted on an outstanding stub shaft 75 carried by the lower end portion of an elongated block 76 fitting within the groove or channed 26 of the post 17 and held in applied position through the instrumentality of the screws 29. The lower end portion of the block 76 is also provided with an outstanding pin or lug 77 disposed in a direction away from the stub shaft '75 and snugly engaging within the opening 27 whereby an effective mounting is assured for the roller 74.

From the foregoing description it is thought to be obvious that a lathe constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claim 1. A device of the class described comprising a spindle, means for supporting said Spindle for both rotary and endwise movement, a. tool carried by the spindle, a rod in swiveled connection with the spindle. a shaft, means carried by said shaft and coacting with the rod for imparting endwise movement to the rod and shaft, said shaft being provided with teeth, a second shaft. means for operatively connecting said sec- 0nd shaft with the spindle to rotate said shaft during rotation of the spindle, means carried by said second shaft engaging the teeth associated with the first named shaft for rotating said shaft, means for rendering inoperative the connection between the second named shaft and the spindle, and manual means for rotating the second shaft when said connection is inoperative.

2. A device of the class described comprising a spindle, means for supporting said spindle for both rotary and endwise movements, a rod in swiveled connection with the spindle, means for rotating the spindle. a shaft operatively engaged with the rod for imparting endwie, movement to the rod and spindle upon rotation of the shaft, said shaft being provided with teeth, a second shaft. means for rotating the same, a sleeve slidably engaged upon the second shaft, said sleeve having movement lengthwise of its shaft, said sleeve being provided at one point therealong with an outstanding tooth and at a second point therealong with a plurality of circumferentially disposed teeth, the first named tooth engaging the teeth of the first shaft when the sleeve is in one position and the series of teeth on the sleeve engaging the teeth of the shaft when the sleeve is in a second position.

A, device of the class described comprising a spindle, means for supporting said spindle for both rotary and endwise movement, a tool carried by the spindle, a rod in swiveled connection with the spindle, a shaft, means carried by said shaft and coacting with the rod for imparting endwise movement to the rod and shaft, said shaft being provided with teeth, a second shaft, means for operatively connecting said second shaft with the spindle to rotate said shaft during rotation of the spindle, means carried by said second shaft engaging the teeth associated with the first named shaft for rotating said shaft, and means for rendering inoperative the connection between the second named shaft and the spindle.

i. A device of the class described comprising a base, an upstanding anchor plate carried by the base, means coacting with said anchor plate for holding the same to the work, spaced bearings carried by the base, bushings rotatably mounted within the bearings, a tubular spindle disposed through said bushings and disposed toward the plate, the end of the spindle opposed to the plate being open, means for keying the spindle to the bushings for rotation therewith but permitting the spindle to have endwise movement through the bushings, a tool carried by the open end portion of the spindle, means for rotating the spindle, and means for imparting endwise movement to the spindle toward the plate during a rotation of the spindle.

5. A device of the class described comprising a base, an upstanding anchor plate carried by the base, means coacting with said anchor plate for holding the same to the work, spaced bearings carried by the base, bushings rotatablymounted within the bearings, a tubular spindle disposed through said bushings and disposed toward the plate, the end of the spindle opposed to the plate being open, means for keying the spindle to the bushings for rotation therewith but permitting the spindle to have endwise movement through the bushings, a tool carried by the open end portion of the spindle, means for rotating the spindle, and means driven from one of the bushings for imparting endwise movement to the spindle toward the plate during rotation of the spindle.

In testimony whereof I hereunto affix my signature.

WILLIAM HENRY LEONARD. 

